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Scientific Area

Damaged hair

CATEGORIES SCIENTIFIC AREA

Scientific collaboration between Professor Marco Toscani and Dr. Pasquale Fino, Chair of Plastic, Reconstructive and Aesthetic Surgery, Umberto I Health Center – “Sapienza” University of Rome.

Changes in the hair shaft lead to deterioration with the appearance of ruined or damaged hair.
In healthy hair, the cuticle is whole, with overlapping shingles. Hair with whole ends appears shiny, elastic and brushes easily.

1) Group of coarse, porous damaged hair

In this case of brittle hair, the shingles of the cuticle are raised or in some cases absent. Hair appears coarse to the touch, dull, opaque, untameable, difficult to brush, with loss of color and a reduction of shininess.

2) Group of damaged hair with changes regarding keratin

In this type of damaged hair, the protein structure of keratin appears to be altered. The hair loses its amino acidic equilibrium, becoming gradually more delicate and less resistant to external aggressions. One of the possible causes is psycho-physical stress.

3) Group of hair damaged as a result of the hair dryer

Use of an overly intense or hot hair dryer results in dryness and dehydration of the shaft. The hair becomes electrified. It ends up losing its hydro-equilibrium, with a subsequent reduction of diameter of the shaft.

4) Group of damaged hair with split ends (trichoptilosis)

Characterized by the presence of split ends. Hair appears dry with the presence of dry, discolored and damaged ends. In the case of some lengths, it may assume a particular “dovetail” form.

5) Group of damaged hair with frayed ends (trichoclasis)

Trichoclasis, typical of fine, thin hair, causes very deep damage in the hair stem. The hair ends open up like a brush. The cause of trichoclasis is mineral deficiency.

6) Group of damaged hair with illness of the hair shaft (trichorrhexis nodosa)

Swelling of the cuticle and the cortex lead to a reduction and subsequent loss in elasticity and softness of the hair, making it untameable and difficult to brush. Off-the-shelf products with emollient and hydrating properties such as oil compresses, flaxseed and restructuring and regenerating masks are remedies and treatments used to cure brittle hair.

Seborrheic alopecia (seborrheic hair loss)

Seborrheic hair loss is a form of premature hair loss that generally afflicts men in their youth (onset between 20 and 30 years of age), mainly affecting the frontal region and the crown. The cause, as the name of the condition suggests, is related to an excess production of sebum that provokes or accelerates hair loss.

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Structure and chemical composition of hair

The hair on our bodies has a particular structure and is divided into thin and thick hair. Thin hair, also called lanugo or vellus, is located on all skin surfaces except for the palms of the hands and the soles of the feet. Thick hair, also called terminal hair, is dark and located only in some areas such as the scalp, the armpits, the pubic area, the beard area in the case of men, etc…

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Damaged hair

Changes in the hair shaft lead to deterioration with the appearance of ruined or damaged hair.
In healthy hair, the cuticle is whole, with overlapping shingles. Hair with whole ends appears shiny, elastic and brushes easily.

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Dandruff or pityriasis

Dandruff is a scalp condition that usually arises between the ages of 10 and 25. It may improve between the ages of 45 and 55 or may continue during old age.
Its cause is a result of an accelerated turnover of epidermal cells, which following an increase in migration speed, are unable to reach complete maturity before detaching. Whitish-yellow flakes (masses of corneum cells) form and detach, gathering in patches or often spreading evenly across the scalp.

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Dry skin or asteatosis

Dry skin or asteatosis is a scalp condition deriving from a lipid deficiency.
It is often associated with a situation of exacerbated dehydration. We can identify both internal and external causes for this anomaly.

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Hyperseborrhea

Hyperseborrhea or hypersecretion of sebum is simply a scalp problem due to an excessive production of sebum caused by hyperactivity of the sebaceous glands. Immediate symptoms of hyperseborrhea are scalp itchiness and pain. However, a later symptom is hair loss.

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